Glupaste is a type of web application where users can store plain text/code snippets. They are most commonly used to share text information/short source code snippets for code review. There are other web applications for the same purpose but they'll only work when internet is working in hostels but this Glupaste apps as is hosted locally so can be accessed anytime over intranet 1 even when internet isn't working.
A blog is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries. And this also can be accessed anytime as its hosted on our servers over intranet 1.
Glucloud is a OwnCloud hosted on glug servers. OwnCloud is a suite of client-server software for creating file hosting services and using them. OwnCloud is functionally very similar to the widely used Dropbox, with the primary functional difference being that OwnCloud is free and open-source, and thereby allowing anyone to install and operate it without charge on a private server.
1) Intranet An intranet is a private network accessible only to an organization's staff. Generally a wide range of information and services from the organization's internal IT systems are available that would not be available to the public from the Internet.